Sandwich nanoarchitectonics of heterogenous CB/CNTs honeycomb composite for impedance matching design and microwave absorption

Bi, Shuping; Song, Yuanyuan; Hou, Genliang; Li, Hao; Liu, Zhaohui; Hou, Zhi‐Ling; Zhang, Junying

doi:10.1016/j.jallcom.2023.169154

Cited by 14 publications

(1 citation statement)

References 59 publications

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“…The main traditional EM-absorbing materials are ferrite-based, 15 ceramicbased, 16 or carbon-based. 17 Carbon-and ceramic-based absorbers are mainly subjected to dielectric loss, whereas ferrite-based absorbers mainly undergo magnetic loss. As is well known, the absorbing medium can be adjusted to tune the electromagnetic features of microwave absorbers.…”

Section: Introductionmentioning

confidence: 99%

Preparation, testing, and design of a radar‐absorption polymethacrylimide foam

Song,

Yuan,

Duan

et al. 2023

Journal of Polymer Science

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This article presents a new radar‐absorbing polymethacrylimide (RAPMI) foam, measures the electromagnetic (EM) parameters of the foam, and establishes mechanical prediction models. The reflection loss (RL) curves of foams with different thicknesses and absorbent weight ratios (wt%) were analyzed along with the shear and compression behaviors of the RAPMI foam. Gibson models of the RAPMI foam were then established. The parametric effects of the absorption performance of multilayered RAPMI foams were analyzed using multimedia transmission‐line theory. A numerically designed RAPMI foam exhibited excellent EM performance while retaining the outstanding mechanical properties of the original foam. The laminated foam can theoretically achieve a full‐band effective absorption (RL ≤ −10 dB) of 2–18 GHz with a minimal thickness of 33.1 mm.

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Section: Introductionmentioning

confidence: 99%

Preparation, testing, and design of a radar‐absorption polymethacrylimide foam

Song,

Yuan,

Duan

et al. 2023

Journal of Polymer Science

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Study on microwave absorption performance of the skin‐core dual‐domain structure constructed with thin‐ply laminate and honeycomb

Liang,

Zhang,

Zhang

et al. 2024

Polymer Composites

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This study introduces an innovative approach to enhance the absorption capabilities of skin‐core dual‐domain structure radar‐absorbing materials (SDSRAM) composed of thin‐ply laminates and honeycomb. The upper skin laminates consist of transmissive skin and impedance matching layer. The impedance matching layer was hot‐pressed using functionalized absorbed thin‐ply glass fibers prepregs, flaked carbonyl iron powder (FCIP) and multi‐walled carbon nanotubes (MWCNTs) as the absorber. The lower skin was manufactured using carbon fiber‐plated nickel. The core is prepared by honeycomb modified (HCM). The permittivity and permeability of the skin laminates and the HCM were measured by wave‐guide method. The impact of FCIP/MWCNT on the electromagnetic (EM) parameters of the thin‐ply laminates and the influence of MWCNTs on the permittivity of the honeycomb were investigated. Microwave absorption properties of SDSRAM were assessed through the measurement of reflection loss (RL) using the arch method and simulated using the microwave simulation software CST studio suite 2020. Experimental verification was conducted to confirm the absorbing performance. The results show that the effective absorption bandwidth (RL < 10 dB) of SDSRAM covers the frequency range of 2.2–18 GHz, with a maximum absorption intensity of −42.5 dB. The introduction of the thin‐ply laminates caused a shift in the peak of the reflectance curve toward lower frequencies.Highlights Functionalized absorbed glass fibers were prepared using fiber spreading functional sizing integrated process. A new skin‐core dual‐domain synergistic modulation absorbed structure was developed with thin‐ply laminates and modified honeycomb. Its broadband absorption mechanism was discussed. Desired broadband absorption performance was acquired with thin thickness.

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